SOLARCHECK RSD safely and automatically shuts down your system during installation, maintenance, or in dangerous situations.
Photovoltaic rooftop systems generate DC voltages of up to 1000 V and cannot be disconnected easily on the DC side. This presents a problem if the system is damaged. SOLARCHECK RSD automatically switches your system to a safe state. You are protected from life-threatening electric shocks during installation and maintenance or in dangerous situations.
The automatic SOLARCHECK RSD photovoltaic panel shutdown won the GIT Security Award in the Fire & Explosion Protection, Industrial Safety category.
The prize for outstanding innovative products and systems in safety technology is awarded each year by the magazines GIT Sicherheit, GIT Security, and messtec drives Automation on behalf of publisher Wiley-VCH.
Prior to this, the product was nominated as a finalist by a neutral jury with representatives from BHE, TÜV, VDMA, ZVEI, integrators, and users. Over 75,000 readers of the print magazines and associated online communities at git-sicherheit.de, git-security.com, and pro-4-pro.com chose the winners.
The series connection of photovoltaic panels to strings causes voltages of up to 1000 V. Disconnection at the inverter is not safe, as the DC cables are still carrying high voltages.
Potential risks for people:
SOLARCHECK RSD consists of units for switching off the individual PV panels and startup units, which are used to restart the system. Each shutdown unit disconnects the corresponding panel from the string group. The disconnection takes place automatically in the event of a fault and each time the inverter is shutdown. The entire DC side of the photovoltaic system is then in the range of the safety extra low voltage, at the most. There is no risk of an electric shock.
SOLARCHECK RSD analyzes the current and voltage conditions on the DC side. According to the failsafe principle, shutdown is initiated each time there is a deviation from a normal operating state or the inverter is shut down. The system is restarted automatically when a safe and technically faultless environment is present. SOLARCHECK RSD tracks the operating state of the inverter. The system can therefore easily be manually switched on and off via the inverter, for maintenance purposes, for example.
This technology, developed and patented by Phoenix Contact, is more reliable and faster than any human assessment or manual intervention.